java - Make Main Method restart/refresh -

my code far:

import java.util.*; import java.util.scanner.*;  public class project{ // main method   public static void main(string [] args){ // creates main method     system.out.println("name method (stability, efficiency ..)"); // asks user select method     scanner scan = new scanner(system.in); // creates scanner     string splash = scan.nextline(); // transitions user next line after choosing method     if(splash.equals("efficiency")) // if users chooses efficiency goes efficiency method     {       efficiency(); // calls efficiency method     }     if(splash.equals("stability")) // if user chooses stability goes stability method     {       stable(); // calls stability method     }       else // happens if input wasnt recognized       {       system.out.println("i don't recognize this"); // happens if irrelevant method chosen     }   } } 

how make instead of:

else // happens if input wasnt recognized  {     system.out.println("i don't recognize this"); // happens if irrelevant method chosen } 

it refresh or restart main method?

wrap code in while loop leave when user chooses exit command:

public static void main(string [] args){     while (true) {        system.out.println("name method (stability, efficiency ..)");        scanner scan = new scanner(system.in);        string splash = scan.nextline();        if (splash.equals("exit")) {           break;        } // else if (splash.equals("efficiency")) ...    }   }